@Book{BVMC:1257417,
author = {Alchabitius},
author = {Ptolomeo, Claudio},
author = {Yahya ibn Abi Mansur, al-Mamuni},
author = {Pseudo Ptolomeo},
author = {Mashaallah},
author = {Alfraganus},
author = {Bethem},
author = {Sahl Ibn Bisr},
author = {Ibn Abi al-Rigal, Abu al-Hasan Ali},
title = {Liber de aggregationibus scientiae stellarum (Ms. 2051)},
url = {https://www.cervantesvirtual.com/obra/liber-de-aggregationibus-scientiae-stellarum-ms-2051-1257417}
}